22559478 has 16 divisors (see below), whose sum is σ = 45370416. Its totient is φ = 7477920.

The previous prime is 22559473. The next prime is 22559489. The reversal of 22559478 is 87495522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22559473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9301 + ... + 11472.

It is an arithmetic number, because the mean of its divisors is an integer number (2835651).

Almost surely, 2^22559478 is an apocalyptic number.

22559478 is an abundant number, since it is smaller than the sum of its proper divisors (22810938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22559478 is a wasteful number, since it uses less digits than its factorization.

22559478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20959.

The product of its digits is 201600, while the sum is 42.

The square root of 22559478 is about 4749.6818840844. The cubic root of 22559478 is about 282.5593495271.

The spelling of 22559478 in words is "twenty-two million, five hundred fifty-nine thousand, four hundred seventy-eight".